Chalcopyrite on quartz D.50666 Click to enlarge image
Ovens River Myrtleford Victoria Australia (7.6 x 9.2 x 1.5 cm). Registered 1980. D.46594 Image: Carl Bento
© Australian Museum

These large, golden tetrahedral chalcopyrite (copper iron sulphide) crystals on quartz matrix were purchased in the mid-1960s by Albert Chapman from John Cerlienco of South Australia. Before that it was in the Thomas Cloud Collection of mainly South Australian specimens.

Specimen details

  • Origin

    Moonta Mine, South Australia, Australia

  • Size

    10 x 21 x 5 cm (crystals to 5 cm)

  • Date

    Registered 1996

  • Collection number


  • Collection

Thomas Cloud was a metallurgist and assayer – someone who tests ores and minerals and analyses them to determine their composition and value. He studied at the Royal School of Mines, Imperial College in London, before moving to Australia. He was appointed assayer at the Wallaroo Smelting Works in 1870 and was Mine Manager from 1883 to 1903. His access to mines in the area allowed him to build up a fine collection of South Australian minerals.

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